2009-09-12 04:02:01 +08:00
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//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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2009-10-28 01:49:50 +08:00
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#include "../assembly.h"
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2009-09-12 04:02:01 +08:00
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//
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// extern float __subsf3vfp(float a, float b);
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//
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// Returns the difference between two single precision floating point numbers
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// using the Darwin calling convention where single arguments are passsed
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// like 32-bit ints.
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//
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2009-10-28 01:50:21 +08:00
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DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)
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2009-09-12 04:02:01 +08:00
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fmsr s14, r0 // move first param from r0 into float register
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fmsr s15, r1 // move second param from r1 into float register
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fsubs s14, s14, s15
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fmrs r0, s14 // move result back to r0
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bx lr
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